®
1/5
Table 1: Main Product Characteristics
IF(AV) 0.1 A
VRRM 30 V
Tj150°C
VF(max) 0.33 and 0.40 V
BAR42FILM
BAR43FILM
SMALL SIGNAL SCHOTTKY DIODE
REV. 3
Table 3: Absolute Ratings (limiting values)
Symbol Parameter Value Unit
VRRM Repetitive peak reverse voltage 30 V
IF(AV) Continuous forward current 0.1 A
IFSM Surge non repetitive forward current tp = 10ms sinusoidal 0.75 A
Ptot Power dissipation (note 1) Tamb = 25°C 250 mW
Tstg Maximum storage temperature range -65 to + 150 °C
TjMaximum operating junction temperature * 150 °C
TLMaximum temperature for soldering during 10s 260 °C
Note 1: for double diodes, Ptot is the total dissipation of both diodes.
* : thermal runaway condition for a diode on its own heatsink
dPtot
dTj
--------------- 1
Rth j a
–()
-------------------------->
K
A
K
A
Nc
A2
A1
K
K
A1
A2
A2
A1
K2
K1
A1
K2
A2
K1
K1
A
K2
K2
A
K1
BAR42FILM
BAR43FILM
BAR43CFILM
BAR43AFILM
BAR43ASFILM
SOT23-3L
April 2005
FEATURES AND BENEFITS
■Very small conduction losses
■Negligible switching losses
■Low forward voltage drop
■Surface mount device
DESCRIPTION
Genral purpose metal to silicon diodes featuring
very low turn-on voltage and fast switching.
Table 2: Order Codes
Part Number Marking
BAR42FILM D94
BAR43FILM D95
BAR43AFILM DB1
BAR43CFILM DB2
BAR43SFILM DA5
BAR42FILM / BAR43FILM
2/5
Table 4: Thermal Resistance
Table 5: Static Electrical Characteristics
Pulse test: * tp = 5 ms, δ < 2%
** tp = 380 µs, δ < 2%
Table 6: Dynamic Characteristics (Tj = 25°C)
Symbol Parameter Value Unit
Rth(j-a) Junction to ambient (*) 500 °C/W
(*) Mounted on epoxy board with recommended pad layout.
Symbol Parameter Tests conditions Min. Typ Max. Unit
VBR Breakdown voltage Tj = 25°C IR = 100µA 30 V
IR * Reverse leakage current Tj = 25°C VR = VRRM
500 nA
Tj = 100°C 100 µA
VF ** Forward voltage drop Tj = 25°C
BAR42 IF = 10mA 0.35 0.40
V
IF = 50mA 0.50 0.65
BAR43 IF = 2mA 0.26 0.33
IF = 15mA 0.45
ALL IF = 100mA 1
Symbol Parameter Tests conditions Min. Typ. Max. Unit
C Junction capacitance Tj = 25°C VR = 1V F = 1 MHz 7pF
trr Reverse recovery time IF = 10 mA IR = 10 mA
Tj = 25°C Irr = 1 mA RL = 100 Ω5ns
ηDetection efficiency CL = 300 pF F = 45 MHz
Tj = 25°C Vi = 2 V RL = 50 Ω80 %
Figure 1: Forward voltage drop versus forward
current (typical values, low level)
Figure 2: Forward voltage drop versus forward
current (typical values, high level)
0.00 0.05 0.10 0.15 0.20 0.25 0.30 0.35 0.40 0.45 0.50
0.00E+0
2.00E-3
4.00E-3
6.00E-3
8.00E-3
1.00E-2
1.20E-2
1.40E-2
1.60E-2
1.80E-2
2.00E-2
I (A)
FM
V (V)
FM
T =25°C
j
T =50°C
j
T =100°C
j
0.0 0.1 0.2 0.3 0.4 0.5 0.6 0.7 0.8 0.9 1.0 1.1
1E-3
1E-2
1E-1
5E-1
I (A)
FM
V (V)
FM
T =25°C
j
T =50°C
j
T =100°C
j
BAR42FILM / BAR43FILM
3/5
Figure 3: Reverse leakage current versus
reverse voltage applied (typical values)
Figure 4: Reverse leakage current versus
junction temperature
Figure 5: Junction capacitance versus reverse
voltage applied (typical values)
Figure 6: Relative variation of thermal
impedance junction to ambient versus pulse
duration (epoxy FR4 with recommended pad
layout, e(Cu)=35µm)
Figure 7: Thermal resistance junction to
ambient versus copper surface under each
lead (Epoxy printed circuit board FR4, copper
thickness: 35µm)
0 5 10 15 20 25 30
1E-2
1E-1
1E+0
1E+1
1E+2
I (µA)
R
V (V)
R
T =100°C
j
T =50°C
j
T =25°C
j
0 25 50 75 100 125 150
1E-2
1E-1
1E+0
1E+1
1E+2
1E+3
1E+4
I (µA)
R
V (V)
R
V =30V
R
12 5102030
1
2
5
10
C(pF)
V (V)
R
F=1MHz
T =25°C
j
1E-3 1E-2 1E-1 1E+0 1E+1 1E+2
0.01
0.10
1.00
Z/R
th(j-a) th(j-a)
T
δ=tp/T tp
t (s)
p
δ= 0.5
δ= 0.2
δ= 0.1
Single pulse
0 5 10 15 20 25 30 35 40 45 50
150
200
250
300
350
R (°C/W)
th(j-a)
S(CU)(mm²)
P=0.25W
BAR42FILM / BAR43FILM
4/5
Figure 8: SOT23-3L Package Mechanical Data
Figure 9: Foot Print Dimensions (in millimeters)
A1
A
L
H
B
E
D
e
e1
S
c
0.95 0.61
1.26
3.25
0.73
Table 7: Ordering Information
■Epoxy meets UL94, V0
Ordering type Marking Package Weight Base qty Delivery mode
BAR42FILM D94
SOT23-3L 0.01 g 3000 Tape & reel
BAR43FILM D95
BAR43AFILM DB1
BAR43CFILM DB2
BAR43SFILM DA5
Table 8: Revision History
Date Revision Description of Changes
Aug-2001 2B Last update.
16-Apr-2005 3 Layout update. No content change.
REF.
DIMENSIONS
Millimeters Inches
Min. Max. Min. Max.
A 0.89 1.4 0.035 0.055
A1 0 0.1 0 0.004
B 0.3 0.51 0.012 0.02
c 0.085 0.18 0.003 0.007
D 2.75 3.04 0.108 0.12
e 0.85 1.05 0.033 0.041
e1 1.7 2.1 0.067 0.083
E 1.2 1.6 0.047 0.063
H 2.1 2.75 0.083 0.108
L 0.6 typ. 0.024 typ.
S 0.35 0.65 0.014 0.026
BAR42FILM / BAR43FILM
5/5
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